Bell in Vacuum
Product Code : JA-SW-7592
The Bell in Vacuum (SKU JA-SW-7592) is a versatile unit for demonstrating the properties of a vacuum, best known for showing that sound cannot travel without air. It comprises a sturdy baseplate with a tap, a glass bell jar and a detachable battery-operated bell, and it is used with a hand vacuum pump or, ideally, an electric vacuum pump. JaincoLab supplies this bell in vacuum apparatus to school and college physics laboratories.
Specifications
The Bell in Vacuum set consists of a sturdy baseplate fitted with a tap, a glass bell jar that sits on the baseplate and a detachable battery-operated bell, and it is designed to be evacuated with a hand vacuum pump or, preferably, an electric vacuum pump.
| Product | Bell in Vacuum |
| SKU | JA-SW-7592 |
| Baseplate | Sturdy baseplate with tap |
| Jar | Glass bell jar |
| Bell | Detachable, battery operated |
| Pump | Hand vacuum pump or, ideally, electric vacuum pump (not part of this listing) |
| Purpose | Demonstrating the properties of a vacuum |
Demonstrations with the bell in vacuum apparatus
With the bell ringing inside the glass jar, air is pumped out and the sound heard by the class fades as the pressure falls, then returns when air is let back in; because the bell is detachable, the jar and baseplate are also free for other demonstrations of the properties of a vacuum.
- Showing that sound needs a medium and cannot cross a vacuum
- Letting air back in to show the sound of the bell returning
- Other vacuum demonstrations with the bell removed from the jar
- Secondary school sound lessons and college physics demonstrations
Scope of supply and ordering
The listing comprises the sturdy baseplate with tap, the glass bell jar and the detachable battery-operated bell. The vacuum pump is a separate item; a hand pump or an electric vacuum pump can be quoted with the set. Accessories, spares, batteries and quantities are confirmed on the quotation.
MOQ, lead time and packing are confirmed on each quotation according to the quantity and the delivery destination. JaincoLab supplies single sets for school laboratories, several sets for colleges and bulk education orders, and exports to buyers in Africa, the Middle East and South and South-East Asia.
Frequently asked questions
What does the Bell in Vacuum set include?
A sturdy baseplate with a tap, a glass bell jar and a detachable battery-operated bell.
Which pump should be used with it?
It can be used with a hand vacuum pump, or ideally with an electric vacuum pump.
Is the bell removable?
Yes. The battery-operated bell is detachable, so the jar and baseplate can also be used for other vacuum demonstrations.
Related products
Browse Sound and Waves for more sound apparatus, or see the full range of JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Bell in Vacuum, send the number of sets, the pump required and the delivery destination through the JaincoLab contact page or email [email protected]. For tender or project supply, see our tenders page.
